<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="关键词" prop="keyword">
        <el-input
          v-model="queryParams.keyword"
          placeholder="请输入:项目ID/采购编号/金额/供应商/关键词"
          clearable
          @keyup.enter.native="handleQuery"
          style="width: 520px;"
        />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          v-hasPermi="['pm:purchase:add']"
        >新增</el-button>
      </el-col>
<!--      <el-col :span="1.5">-->
<!--        <el-button-->
<!--          type="success"-->
<!--          plain-->
<!--          icon="el-icon-edit"-->
<!--          size="mini"-->
<!--          :disabled="single"-->
<!--          @click="handleUpdate"-->
<!--          v-hasPermi="['pm:purchase:edit']"-->
<!--        >修改</el-button>-->
<!--      </el-col>-->
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['pm:purchase:remove']"
        >删除</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="el-icon-data-analysis"
          size="mini"
          @click="openReport"
        >查看报表</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="warning"
          plain
          icon="el-icon-download"
          center:right
          size="mini"
          @click="handleExport"
          v-hasPermi="['pm:purchase:export']"
        >导出</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="info"
          plain
          icon="el-icon-upload"
          size="mini"
          @click="handleImport"
          v-hasPermi="['pm:purchase:import']"
        >导入</el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="projectList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="ID" align="center" prop="id" width="40"/>
      <el-table-column label="项目ID" align="center" prop="projectId" width="60"/>
      <el-table-column label="采购编号" align="center" prop="purchaseNo" width="180"/>
      <el-table-column label="采购内容" align="center" prop="purchaseContent" />
      <el-table-column label="采购金额" align="center" prop="purchaseAmount" />
      <el-table-column label="采购日期" align="center" prop="purchaseDate" width="180">
        <template slot-scope="scope">
          <span>{{ parseTime(scope.row.purchaseDate, '{y}-{m}-{d}') }}</span>
        </template>
      </el-table-column>
      <el-table-column label="供应商" align="center" prop="supplier" />
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
            v-hasPermi="['system:project:edit']"
          >修改</el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['pm:purchase:remove']"
          >注销</el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination
      v-show="total>0"
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
    />

    <!-- 导入对话框 -->
    <el-dialog :title="upload.title" :visible.sync="upload.open" width="400px" append-to-body>
      <el-upload ref="upload" :limit="1" accept=".xlsx, .xls" :headers="upload.headers" :action="upload.url + '?updateSupport=' + upload.updateSupport" :disabled="upload.isUploading" :on-progress="handleFileUploadProgress" :on-success="handleFileSuccess" :auto-upload="false" drag>
        <i class="el-icon-upload"></i>
        <div class="el-upload__text">将文件拖到此处，或<em>点击上传</em></div>
        <div class="el-upload__tip text-center" slot="tip">
          <div class="el-upload__tip" slot="tip">
            <el-checkbox v-model="upload.updateSupport" />是否更新已存在数据
          </div>
          <span>仅允许导入xls、xlsx格式文件。</span>
          <el-link type="primary" :underline="false" style="font-size: 12px; vertical-align: baseline" @click="importTemplate">下载模板</el-link>
        </div>
      </el-upload>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitFileForm">确 定</el-button>
        <el-button @click="upload.open = false">取 消</el-button>
      </div>
    </el-dialog>

    <!-- 添加或修改采购项目信息对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="项目ID" prop="projectId">
          <el-input v-model="form.projectId" placeholder="请输入项目ID" />
        </el-form-item>
        <el-form-item label="采购编号" prop="purchaseNo">
          <el-input v-model="form.purchaseNo" placeholder="请输入采购编号" />
        </el-form-item>
        <el-form-item label="采购内容">
          <editor v-model="form.purchaseContent" :min-height="192"/>
        </el-form-item>
        <el-form-item label="采购金额" prop="purchaseAmount">
          <el-input v-model="form.purchaseAmount" placeholder="请输入采购金额" />
        </el-form-item>
        <el-form-item label="采购日期" prop="purchaseDate">
          <el-date-picker clearable
            v-model="form.purchaseDate"
            type="date"
            value-format="yyyy-MM-dd"
            placeholder="请选择采购日期">
          </el-date-picker>
        </el-form-item>
        <el-form-item label="供应商" prop="supplier">
          <el-input v-model="form.supplier" placeholder="请输入供应商" />
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="warning"
          plain
          icon="el-icon-download"
          size="mini"
          @click="handleExport"
          v-hasPermi="['pm:purchase:export']"
        >导出</el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>
    <!-- 采购金额报表 -->
    <el-dialog :title="'采购金额报表'" :visible.sync="reportOpen" width="60%" append-to-body @closed="disposeReportChart">
      <div ref="reportChart" style="width: 100%; height: 420px;"></div>
      <div slot="footer" class="dialog-footer">
        <el-button @click="reportOpen = false">关 闭</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import { listProject, getProject, delProject, addProject, updateProject } from "@/api/pm/purchase"
import { getToken } from "@/utils/auth"
import * as echarts from 'echarts'
require('echarts/theme/macarons')

export default {
  name: "Project",
  data() {
    return {
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 采购项目信息表格数据
      projectList: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        projectId: null,
        purchaseNo: null,
        purchaseContent: null,
        purchaseAmount: null,
        purchaseDate: null,
        supplier: null,
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {
        projectId: [
          { required: true, message: "项目ID不能为空", trigger: "blur" }
        ],
        createTime: [
          { required: true, message: "创建时间不能为空", trigger: "blur" }
        ],
        updateTime: [
          { required: true, message: "更新时间不能为空", trigger: "blur" }
        ]
      },
      upload: {
        open: false,
        title: "",
        isUploading: false,
        updateSupport: 0,
        headers: { Authorization: "Bearer " + getToken() },
        url: process.env.VUE_APP_BASE_API + "/pm/purchase/importData"
      },
      // 报表弹窗与图表实例
      reportOpen: false,
      reportChartInstance: null
    }
  },
  created() {
    this.getList()
  },
  methods: {
    /** 查询采购项目信息列表 */
    getList() {
      this.loading = true
      listProject(this.queryParams).then(response => {
        this.projectList = response.rows
        this.total = response.total
        this.loading = false
      })
    },
    /** 查看报表 */
    openReport() {
      this.reportOpen = true
      this.$nextTick(() => {
        this.renderReportChart()
      })
    },
    renderReportChart() {
      const el = this.$refs.reportChart
      if (!el) return
      if (this.reportChartInstance) {
        this.reportChartInstance.dispose()
        this.reportChartInstance = null
      }
      this.reportChartInstance = echarts.init(el, 'macarons')

      const categories = (this.projectList || []).map(item => item.purchaseNo || item.id)
      const amounts = (this.projectList || []).map(item => Number(item.purchaseAmount) || 0)

      this.reportChartInstance.setOption({
        tooltip: { trigger: 'axis' },
        grid: { top: 20, left: '3%', right: '3%', bottom: 40, containLabel: true },
        xAxis: [{
          type: 'category',
          data: categories,
          axisLabel: { interval: 0, rotate: categories.length > 8 ? 30 : 0 }
        }],
        yAxis: [{ type: 'value', name: '金额' }],
        series: [{
          name: '采购金额',
          type: 'bar',
          barWidth: categories.length > 10 ? '40%' : '60%',
          data: amounts
        }]
      })
    },
    disposeReportChart() {
      if (this.reportChartInstance) {
        this.reportChartInstance.dispose()
        this.reportChartInstance = null
      }
    },
    // 取消按钮
    cancel() {
      this.open = false
      this.reset()
    },
    // 表单重置
    reset() {
      this.form = {
        id: null,
        projectId: null,
        purchaseNo: null,
        purchaseContent: null,
        purchaseAmount: null,
        purchaseDate: null,
        supplier: null,
        createTime: null,
        updateTime: null
      }
      this.resetForm("form")
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1
      this.getList()
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm")
      this.handleQuery()
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.id)
      this.single = selection.length!==1
      this.multiple = !selection.length
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset()
      this.open = true
      this.title = "添加采购项目信息"
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset()
      const id = row.id || this.ids
      getProject(id).then(response => {
        this.form = response.data
        this.open = true
        this.title = "修改采购项目信息"
      })
    },

    /** 导入按钮 */
    handleImport() {
      this.upload.title = "采购导入"
      this.upload.open = true
    },

    /** 下载模板 */
    importTemplate() {
      this.download('pm/purchase/importTemplate', {}, `purchase_template_${new Date().getTime()}.xlsx`)
    },

    // 文件上传中处理
    handleFileUploadProgress(event, file, fileList) {
      this.upload.isUploading = true
    },
    // 文件上传成功处理
    handleFileSuccess(response, file, fileList) {
      this.upload.open = false
      this.upload.isUploading = false
      this.$refs.upload.clearFiles()
      this.$alert("<div style='overflow: auto;overflow-x: hidden;max-height: 70vh;padding: 10px 20px 0;'>" + response.msg + "</div>", "导入结果", { dangerouslyUseHTMLString: true })
      this.getList()
    },
    // 提交上传文件
    submitFileForm() {
      this.$refs.upload.submit()
    },

    /** 提交按钮 */
    submitForm() {
      this.$refs["form"].validate(valid => {
        if (valid) {
          if (this.form.id != null) {
            updateProject(this.form).then(response => {
              this.$modal.msgSuccess("修改成功")
              this.open = false
              this.getList()
            })
          } else {
            addProject(this.form).then(response => {
              this.$modal.msgSuccess("新增成功")
              this.open = false
              this.getList()
            })
          }
        }
      })
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const ids = row.id || this.ids
      this.$modal.confirm('是否确认删除采购项目信息编号为"' + ids + '"的数据项？').then(function() {
        return delProject(ids)
      }).then(() => {
        this.getList()
        this.$modal.msgSuccess("删除成功")
      }).catch(() => {})
    },
    /** 导出按钮操作 */
    handleExport() {
      this.download('pm/purchase/export', {
        ...this.queryParams
      }, `project_${new Date().getTime()}.xlsx`)
    }
  }
}
</script>
